Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Assessment of Ventilation I: Respiratory Rate

Assessment of Ventilation I: Respiratory Rate

Assessment of Ventilation
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:

Assessment of Ventilation II: Respiratory Depth and Rhythm

Assessment of Ventilation II: Respiratory Depth and Rhythm

Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:

Mechanical Ventilation III: Noninvasive Ventilation

Mechanical Ventilation III: Noninvasive Ventilation

Noninvasive positive-pressure ventilation (NIPPV), continuous positive airway pressure (CPAP), and bilevel positive airway pressure (BiPAP) are essential methods in respiratory care. These ventilation techniques offer unique benefits for patients with various respiratory conditions, providing adequate support without requiring intubation. Let's explore how each method is crucial in improving patient outcomes and enhancing respiratory therapy.
Noninvasive Positive-Pressure Ventilation...

Factors Affecting Pulmonary Ventilation

Factors Affecting Pulmonary Ventilation

Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...

Mechanical Ventilation II: Invasive Ventilation

Mechanical Ventilation II: Invasive Ventilation

Ventilators are essential medical equipment used to aid patients with respiratory difficulties. Their primary function is to assist or replace spontaneous breathing by providing mechanical ventilation. There are two general classes of mechanical ventilators: negative-pressure and positive-pressure ventilators.
Negative-Pressure Ventilators
Negative-pressure ventilators create a vacuum around the chest or body to draw air into the lungs, simulating breathing. This method does not require an...

Assessment of Respiration

Assessment of Respiration

The respiratory system's basic structures and primary functions lay the foundation for nurses' comprehensive respiratory assessments. This assessment includes subjective and objective data to gauge the patient's respiratory health.
Subjective Assessment: Nurses interview the patient to gather information directly during the subjective assessment. It includes questions about the individual's medical history, medications, and symptoms, focusing on past respiratory conditions like...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Hierarchical Cd4SiS6/SiO2 Heterostructure Nanowire Arrays.

Nanoscale research letters·2010

Same author

Differential roles of PKA and Epac on the production of cytokines in the endotoxin-stimulated primary cultured microglia.

Journal of molecular neuroscience : MN·2010

Same author

Discovery of potent, selective, and orally bioavailable 3H-spiro[isobenzofuran-1,4'-piperidine] based melanocortin subtype-4 receptor agonists.

Bioorganic & medicinal chemistry letters·2010

Same author

Evolution of the catalytic activity of Arabidopsis thaliana glutathione transferase zeta class-1 by saturation mutagenesis.

Bioscience, biotechnology, and biochemistry·2010

Same author

Preactivation-based, one-pot combinatorial synthesis of heparin-like hexasaccharides for the analysis of heparin-protein interactions.

Chemistry (Weinheim an der Bergstrasse, Germany)·2010

Same author

Optimization of privileged structures for selective and potent melanocortin subtype-4 receptor ligands.

Bioorganic & medicinal chemistry letters·2010

Search research articles

Related Experiment Video

Updated: Aug 26, 2025

Evaluation of Respiratory System Mechanics in Mice using the Forced Oscillation Technique

Evaluation of Respiratory System Mechanics in Mice using the Forced Oscillation Technique

Published on: May 15, 2013

Mine ventilation system reliability evaluation based on a Markov chain.

Li Liu^1,2, Jian Liu^3,4, Qichao Zhou^1,2

¹College of Safety Science and Engineering, Liaoning Technical University, Huludao, 125105, Liaoning, China.

Scientific Reports

|October 12, 2022

Summary

This study introduces a Markov chain model to quickly assess mine ventilation system reliability. The model simulates system states to predict future performance, enhancing mine safety production.

More Related Videos

Repeated Measurement of Respiratory Muscle Activity and Ventilation in Mouse Models of Neuromuscular Disease

Repeated Measurement of Respiratory Muscle Activity and Ventilation in Mouse Models of Neuromuscular Disease

Published on: April 17, 2017

Design and Use of a Full Flow Sampling System FFS for the Quantification of Methane Emissions

Design and Use of a Full Flow Sampling System FFS for the Quantification of Methane Emissions

Published on: June 12, 2016

Related Experiment Videos

Last Updated: Aug 26, 2025

Evaluation of Respiratory System Mechanics in Mice using the Forced Oscillation Technique

Evaluation of Respiratory System Mechanics in Mice using the Forced Oscillation Technique

Published on: May 15, 2013

Repeated Measurement of Respiratory Muscle Activity and Ventilation in Mouse Models of Neuromuscular Disease

Repeated Measurement of Respiratory Muscle Activity and Ventilation in Mouse Models of Neuromuscular Disease

Published on: April 17, 2017

Design and Use of a Full Flow Sampling System FFS for the Quantification of Methane Emissions

Design and Use of a Full Flow Sampling System FFS for the Quantification of Methane Emissions

Published on: June 12, 2016

Area of Science:

Mining Engineering
Reliability Engineering
Systems Analysis

Background:

Mine ventilation systems are critical for worker safety and health.
Maintaining optimal performance of these systems is essential for safe mining operations.

Purpose of the Study:

To develop a rapid evaluation model for mine ventilation system reliability.
To provide theoretical and technical support for improving mine safety production.

Main Methods:

A model based on Markov chain was established.
System states (normal, risk, failure) were defined.
Monte Carlo simulation was used to determine the state transfer probability matrix based on failure and repair rates.
Reliability indexes like future steady-state probability were analyzed.

Main Results:

The Markov chain model effectively simulates ventilation system operation over time.
The model accurately calculates reliability indexes, including future state probabilities.
The effectiveness of the model was demonstrated through its application to the XQ mine ventilation system.

Conclusions:

The proposed Markov chain model offers a fast and effective method for evaluating mine ventilation system reliability.
This research provides valuable insights and tools for enhancing safety in mine production environments.